Plot hole: When they are sitting around the campfire, Lenny says that the nuclear plant has only just opened. But in another episode where Homer is in high school, the guidance counsellor tells him that the power plant will soon be opening.

This is a mistake for the introduction for the later episodes. When Homer screams, he turns round. You see this in a wide shot. There are no boxes to the right of the door in the garage. However, two just appear out of thin air when he runs through the garage.